SAN FRANCISCO, CA - MARCH 16: Gas prices over $4.00 a gallon are displayed at a Chevron gas station on March 16, 2011 in San Francisco, California. Wholesale prices in the United States spiked last ... more 
SAN FRANCISCO, CA - MARCH 16: Gas prices over $4.00 a gallon are displayed at a Chevron gas station on March 16, 2011 in San Francisco, California. Wholesale prices in the United States spiked last month with a 3.3% rise in energy prices and a 3.9% jump in food prices. (Photo by Justin Sullivan/Getty Images) less 
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Getty Images | Photo By Justin Sullivan / Getty Images
Wed, Mar 16, 2011 2:16 PM EDT